The Sensex at the Bombay Stock Exchange gained 119 points, or 0.6 percent, to close at an almost three-week high of 21,194, in line with rising global markets on friday. The Nifty at the National Stock Exchange climbed 35 points, or 0.6 percent, to 6,314.Stock markets in China, Hong Kong, Singapore and South Korea gained between 0.2 percent and 1.4 percent.